<?php

/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage App
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: BaseMediaSource.php 16971 2009-07-22 18:05:45Z mikaelkael $
 */

/**
 * @see Zend_Gdata_App_MediaSource
 */
require_once 'Zend/Gdata/App/MediaSource.php';

/**
 * Concrete class to use a file handle as an attachment within a MediaEntry.
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage App
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_Gdata_App_BaseMediaSource implements Zend_Gdata_App_MediaSource
{

	/**
	 * The content type for the attached file (example image/png)
	 *
	 * @var string
	 */
	protected $_contentType = null;

	/**
	 * The slug header value representing the attached file title, or null if
	 * no slug should be used.  The slug header is only necessary in some cases,
	 * usually when a multipart upload is not being performed.
	 *
	 * @var string
	 */
	protected $_slug = null;

	/**
	 * The content type for the attached file (example image/png)
	 *
	 * @return string The content type
	 */
	public function getContentType()
	{
		return $this->_contentType;
	}

	/**
	 * Set the content type for the file attached (example image/png)
	 *
	 * @param string $value The content type
	 * @return Zend_Gdata_App_MediaFileSource Provides a fluent interface
	 */
	public function setContentType($value)
	{
		$this->_contentType = $value;
		return $this;
	}

	/**
	 * Returns the Slug header value.  Used by some services to determine the
	 * title for the uploaded file.  Returns null if no slug should be used.
	 *
	 * @return string
	 */
	public function getSlug(){
		return $this->_slug;
	}

	/**
	 * Sets the Slug header value.  Used by some services to determine the
	 * title for the uploaded file.  A null value indicates no slug header.
	 *
	 * @var string The slug value
	 * @return Zend_Gdata_App_MediaSource Provides a fluent interface
	 */
	public function setSlug($value){
		$this->_slug = $value;
		return $this;
	}


	/**
	 * Magic getter to allow acces like $source->foo to call $source->getFoo()
	 * Alternatively, if no getFoo() is defined, but a $_foo protected variable
	 * is defined, this is returned.
	 *
	 * TODO Remove ability to bypass getFoo() methods??
	 *
	 * @param string $name The variable name sought
	 */
	public function __get($name)
	{
		$method = 'get'.ucfirst($name);
		if (method_exists($this, $method)) {
			return call_user_func(array(&$this, $method));
		} else if (property_exists($this, "_${name}")) {
			return $this->{'_' . $name};
		} else {
			require_once 'Zend/Gdata/App/InvalidArgumentException.php';
			throw new Zend_Gdata_App_InvalidArgumentException(
                    'Property ' . $name . ' does not exist');
		}
}

/**
 * Magic setter to allow acces like $source->foo='bar' to call
 * $source->setFoo('bar') automatically.
 *
 * Alternatively, if no setFoo() is defined, but a $_foo protected variable
 * is defined, this is returned.
 *
 * @param string $name
 * @param string $value
 */
public function __set($name, $val)
{
	$method = 'set'.ucfirst($name);
	if (method_exists($this, $method)) {
		return call_user_func(array(&$this, $method), $val);
	} else if (isset($this->{'_' . $name}) || ($this->{'_' . $name} === null)) {
		$this->{'_' . $name} = $val;
	} else {
		require_once 'Zend/Gdata/App/InvalidArgumentException.php';
		throw new Zend_Gdata_App_InvalidArgumentException(
                    'Property ' . $name . '  does not exist');
	}
}

/**
 * Magic __isset method
 *
 * @param string $name
 */
public function __isset($name)
{
	$rc = new ReflectionClass(get_class($this));
	$privName = '_' . $name;
	if (!($rc->hasProperty($privName))) {
		require_once 'Zend/Gdata/App/InvalidArgumentException.php';
		throw new Zend_Gdata_App_InvalidArgumentException(
                    'Property ' . $name . ' does not exist');
	} else {
		if (isset($this->{$privName})) {
			if (is_array($this->{$privName})) {
				if (count($this->{$privName}) > 0) {
					return true;
				} else {
					return false;
				}
			} else {
				return true;
			}
		} else {
			return false;
		}
	}
}

}
